The property is located between sea level and 61 metres elevation on the north side of West Cracroft Island and south side of Harbledown Island. The Baronet Passage lies between the two islands. The occurrence is near the boundary of the Coast Crystalline Belt and the Insular Belt.

The west side of the island is underlain by andesite of the Upper Triassic Vancouver Group, Karmutsen Formation Group, which has undergone regional greenschist facies metamorphism. The occurrence consists of bornite and chalcopyrite as disseminations and in shear zones within the volcanics. Bornite, native copper and pyrite are found in amygdules in the andesite.

In 1901, Bucknell and Johnson held the Lone Star and Copper Queen (092L 126) mineral claims. Two prospect holes were sunk 6 metres on the Lone Star, and a 3.5-metre prospect hole was sunk on the Copper Queen, which was 400 metres west of the Lone Star claim. In 1969, M.E. and W. Gilbertson held the property as the Lucky Strike, Lucky Strike 15 to 17 and G 1 to 17 claims. Work carried out by Rio Tinto Canadian Exploration Limited included mapping the surface workings, cleaning and blasting 10 old and new trenches and taking 200 soil and silt samples.

In 1970 surface geological mapping on Lucky Strike and G 1 to 4 and 17, and an induced polarization survey on G 1 to 4 were conducted.